何时为直接Tomcat抛弃Java EE容器（即JBoss）

At present we deploy to JBoss 4.2 as this is the application server deployed on our cluster. The application currently only makes use of JBoss's connection pool handling through JNDI and the JBossWeb's embedded Tomcat and a couple of JBoss' Tomcat valves (specifically RewriteValve, nothing too difficult to do ourselves).At present we deploy to JBoss 4.2 as this is th